Description: A discussion of the history and merits of the Papp Engine as invented by Joseph Papp and built by Tom Rohner and Bob Rohner. Includes a collection of historical and operational pictures and videos.
Information for 2009. Data for 2010 is available here
Site: "www.pappengine.com"
Approx. monthly SE traffic: 10.25
Approx. monthly SE traffic cost equivalent: $5.84
Approximate Summary Search Engine Traffic
Traffic
Est. Cost
Organic keywords
10.25
$5.84*
Paid keywords
N/A
N/A
* — "Est. Cost" for organic traffic means amount of money the site owner would pay for such traffic if he bought it in PPC systems.
